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Dotaz: Nefunkcni wifi

29.10.2009 12:40 wifi
Nefunkcni wifi
Přečteno: 854×
Odpovědět | Admin
Ahoj, mam wifi kartu TP-LINK TL-WN560G miniPCI (2,4 GHz) a chtel bych z ni udelat AP. Mam Debian 5.0, jadro 2.6.26-2-686. Server ji bezproblemu vidi: 
ap:/# ap:/# lspci -nn
...
00:0c.0 Ethernet controller [0200]: Atheros Communications Inc. AR2413 802.11bg NIC [168c:001a] (rev 01)
...
ap:/#

Wpa_supplicant mam nastaveny nasledovne: 
ap:/# cat /etc/wpa_supplicant/wpa_supplicant.conf
#
# File: wpa_supplicant.conf
#
ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=root
ap_scan=1

network={
	ssid="TUX"
	#psk="muj_wpa_klic"
	psk=c83675195046e113bf7e3de0e6d280edbc8804a88da655992d2bb80f0f72f40b
}
ap:/#
a hostapd: 
ap:/# cat /etc/hostapd/hostapd.conf
interface=ath0
bridge=wifi0
driver=madwifi
debug=0
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
ssid=TUX
hw_mode=g
channel=1
beacon_int=100
max_num_sta=255
rts_threshold=2347
fragm_threshold=2346
auth_algs=3
wpa=1
#wpa_passphrase=muj_wpa_klic
psk=c83675195046e113bf7e3de0e6d280edbc8804a88da655992d2bb80f0f72f40b
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP CCMP
wpa_group_rekey=300
ap:/#
Wi-Fi se snazim spustit takto: 
ap:/# rm /var/run/wpa_supplicant/ath0
rm: nelze odstranit „/var/run/wpa_supplicant/ath0“: není souborem ani adresářem
ap:/# wlanconfig ath0 destroy
ap:/# wlanconfig ath0 create wlandev wifi0 wlanmode ap
ath0
ap:/# iwconfig ath0 essid "TUX" channel 1
ap:/# iwconfig ath0 rate 54M
ap:/# iwconfig ath0 txpower on
ap:/# ifconfig ath0 192.168.1.2 netmask 255.255.255.0
ap:/# ifconfig ath0 up
ap:/# /etc/init.d/hostapd stop
Stopping advanced IEEE 802.11 management: hostapd.
ap:/# killall -q wpa_supplicant
ap:/# wpa_supplicant -c /etc/wpa_supplicant/wpa_supplicant.conf -D wext -i ath0 -B
ioctl[SIOCSIWMODE]: Invalid argument
Could not configure driver to use managed mode
ap:/# /etc/init.d/hostapd start
Starting advanced IEEE 802.11 management: hostapd failed!
ap:/#
Jenze se to nespusti. :-( 
ap:/# ifconfig 
ath0      Link encap:Ethernet  HWadr 06:1d:0f:b2:d3:16  
          inet adr:192.168.1.2  Všesměr:192.168.1.255 Maska:255.255.255.0
          AKTIVOVÁNO VŠESMĚROVÉ_VYSÍLÁNÍ MULTICAST  MTU:1500  Metrika:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          kolizí:0 délka odchozí fronty:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

eth0      Link encap:Ethernet  HWadr 00:13:46:4e:0e:68  
          inet adr:192.168.200.20  Všesměr:192.168.200.255 Maska:255.255.255.0
          AKTIVOVÁNO VŠESMĚROVÉ_VYSÍLÁNÍ BĚŽÍ MULTICAST  MTU:1500  Metrika:1
          RX packets:4163 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4066 errors:0 dropped:0 overruns:0 carrier:0
          kolizí:0 délka odchozí fronty:1000 
          RX bytes:2187360 (2.0 MiB)  TX bytes:912942 (891.5 KiB)
          Přerušení:12 Vstupně/Výstupní port:0x1400 

eth1      Link encap:Ethernet  HWadr 00:0d:b9:17:1b:bc  
          inet adr:192.168.1.1  Všesměr:192.168.1.255 Maska:255.255.255.0
          AKTIVOVÁNO VŠESMĚROVÉ_VYSÍLÁNÍ BĚŽÍ MULTICAST  MTU:1500  Metrika:1
          RX packets:3295 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3213 errors:0 dropped:0 overruns:0 carrier:0
          kolizí:0 délka odchozí fronty:1000 
          RX bytes:615878 (601.4 KiB)  TX bytes:2199057 (2.0 MiB)
          Přerušení:10 Vstupně/Výstupní port:0x1000 

lo        Link encap:Místní smyčka  
          inet adr:127.0.0.1 Maska:255.0.0.0
          AKTIVOVÁNO SMYČKA BĚŽÍ  MTU:16436  Metrika:1
          RX packets:776 errors:0 dropped:0 overruns:0 frame:0
          TX packets:776 errors:0 dropped:0 overruns:0 carrier:0
          kolizí:0 délka odchozí fronty:0 
          RX bytes:89733 (87.6 KiB)  TX bytes:89733 (87.6 KiB)

wifi0     Link encap:NEZNÁM  HWadr 00-1D-0F-B2-D3-16-00-00-00-00-00-00-00-00-00-00  
          AKTIVOVÁNO VŠESMĚROVÉ_VYSÍLÁNÍ BĚŽÍ MULTICAST  MTU:1500  Metrika:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:292 errors:0 dropped:0 overruns:0 carrier:0
          kolizí:0 délka odchozí fronty:280 
          RX bytes:456 (456.0 B)  TX bytes:14658 (14.3 KiB)
          Přerušení:9 

ap:/# 
ap:/# iwconfig 
ath0      IEEE 802.11g  ESSID:"TUX"  Nickname:""
          Mode:Master  Frequency:2.412 GHz  Access Point: 06:1D:0F:B2:D3:16   
          Bit Rate=54 Mb/s   Tx-Power:16 dBm   Sensitivity=1/1  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=0/70  Signal level=-95 dBm  Noise level=-95 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

ap:/#
Zkousel jsem uz vsechno mozne, ale porad nic. Nenapada nekoho, co stim?
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Odpovědi

the.max avatar 29.10.2009 20:48 the.max | skóre: 46 | blog: Smetiště
Rozbalit Rozbalit vše Re: Nefunkcni wifi
Odpovědět | | Sbalit | Link | Blokovat | Admin
http://www.simandl.cz/stranky/linux/atheros/atheros.htm
KERNEL ULTRAS Fan Team || Sabaton - nejlepší učitel dějepisu || Gentoo - dokud nás systemd nerozdělí.
2.11.2009 19:26 wifi
Rozbalit Rozbalit vše Re: Nefunkcni wifi
Nastavil jsem to podle toho navodu a nejde to :-(

Spustim to skriptem: 
#!/bin/bash
iface="ath0"
iwace="wifi0"
/etc/init.d/hostapd stop
killall -q wpa_supplicant
wlanconfig $iface destroy
wlanconfig $iface create wlandev $iwace wlanmode ap
wpa_supplicant -D wext -i ath0 -B -c /etc/wpa_supplicant/wpa_supplicant.conf
/etc/init.d/hostapd start
ifconfig $iface inet 192.168.1.2 netmask 255.255.255.0 broadcast 192.168.1.255
iwconfig $iface essid "TEST"
iwpriv $iface mode 1
iwconfig $iface channel 7
iwconfig $iface rate 54M
athctrl $iface -d 500
sleep 10s
iwconfig $iface channel 7
iwconfig $iface txpower 2
Pouzivam takovedle nastaveni: 
ap:/# cat /etc/wpa_supplicant/wpa_supplicant.conf
#
# File: wpa_supplicant.conf
#
ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
#ap_scan=1


network={
    ssid="TEST"
    #psk="tajneheslo"
    psk=8074aab679a49c7e199cbc8cebedcea389bf4f2c35a960417161282e8fa54d44
    key_mgmt=WPA-PSK
}
ap:/# 
ap:/#
ap:/# cat /etc/hostapd/hostapd.conf
bridge=wifi0
# Enable this for standard bridging, leave disabled for netfilter firewalls
interface=ath0
driver=madwifi
logger_syslog=-1
logger_syslog_level=0	#2
logger_stdout=-1
logger_stdout_level=0	#2
# Debugging: 0 = no, 1 = minimal, 2 = verbose, 3 = msg dumps, 4 = excessive
debug=3
# Dump file for state information (on SIGUSR1)
dump_file=/tmp/hostapd.dump
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
#own_ip_addr=192.168.2.1
macaddr_acl=0
eap_message=hello
auth_algs=3
ssid=TEST
macaddr_acl=0
wpa=3
wpa_psk=8074aab679a49c7e199cbc8cebedcea389bf4f2c35a960417161282e8fa54d44
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
#psk="tajneheslo"
hw_mode=b
channel=7
ieee8021x=0
ap:/#
ap:/#
ap:/#
Klient vidi AP, ale nepripoji se. Na AP v syslogu se objevi: 
Nov  Nov  1 23:55:34 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.11: associated
Nov  1 23:55:34 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: event 1 notification
Nov  1 23:55:34 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: event 4 notification
Nov  1 23:55:34 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:55:34 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: received EAPOL-Key frame (2/4 Pairwise)
Nov  1 23:55:34 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 3/4 msg of 4-Way Handshake
Nov  1 23:55:34 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: received EAPOL-Key frame (4/4 Pairwise)
Nov  1 23:55:34 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.1X: authorizing port
Nov  1 23:55:34 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: pairwise key handshake completed (WPA)
Nov  1 23:55:34 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/2 msg of Group Key Handshake
Nov  1 23:55:34 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: received EAPOL-Key frame (2/2 Group)
Nov  1 23:55:34 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: group key handshake completed (WPA)
Nov  1 23:55:48 eu kernel: [299164.544258] wifi0: ath_bstuck_tasklet: Stuck beacon; resetting (beacon miss count: 11)
Nov  1 23:55:55 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.11: associated
Nov  1 23:55:55 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: event 1 notification
Nov  1 23:55:55 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: event 4 notification
Nov  1 23:55:55 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:55:56 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: EAPOL-Key timeout
Nov  1 23:55:56 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:55:57 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: EAPOL-Key timeout
Nov  1 23:55:57 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:55:58 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: EAPOL-Key timeout
Nov  1 23:55:58 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:55:58 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.1X: unauthorizing port
Nov  1 23:55:58 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.11: deauthenticated due to local deauth request
Nov  1 23:55:58 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.11: disassociated
Nov  1 23:56:08 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.11: associated
Nov  1 23:56:08 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: event 1 notification
Nov  1 23:56:08 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: start authentication
Nov  1 23:56:08 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.1X: unauthorizing port
Nov  1 23:56:08 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:56:09 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: EAPOL-Key timeout
Nov  1 23:56:09 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:56:09 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: received EAPOL-Key frame (2/4 Pairwise)
Nov  1 23:56:09 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 3/4 msg of 4-Way Handshake
Nov  1 23:56:09 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: received EAPOL-Key frame (4/4 Pairwise)
Nov  1 23:56:09 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.1X: authorizing port
Nov  1 23:56:09 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: pairwise key handshake completed (WPA)
Nov  1 23:56:09 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/2 msg of Group Key Handshake
Nov  1 23:56:09 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: received EAPOL-Key frame (2/2 Group)
Nov  1 23:56:09 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: group key handshake completed (WPA)
Nov  1 23:56:15 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.11: disassociated
Nov  1 23:56:15 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: event 2 notification
Nov  1 23:56:15 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.1X: unauthorizing port
Nov  1 23:57:40 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.11: associated
Nov  1 23:57:40 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: event 1 notification
Nov  1 23:57:40 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: start authentication
Nov  1 23:57:40 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.1X: unauthorizing port
Nov  1 23:57:40 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:57:41 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: EAPOL-Key timeout
Nov  1 23:57:41 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:57:41 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: received EAPOL-Key frame (2/4 Pairwise)
Nov  1 23:57:41 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 3/4 msg of 4-Way Handshake
Nov  1 23:57:41 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: received EAPOL-Key frame (4/4 Pairwise)
Nov  1 23:57:41 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.1X: authorizing port
Nov  1 23:57:41 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: pairwise key handshake completed (WPA)
Nov  1 23:57:41 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/2 msg of Group Key Handshake
Nov  1 23:57:41 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: received EAPOL-Key frame (2/2 Group)
Nov  1 23:57:41 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: group key handshake completed (WPA)
Nov  1 23:57:45 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.11: associated
Nov  1 23:57:45 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: event 1 notification
Nov  1 23:57:45 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: event 4 notification
Nov  1 23:57:45 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:57:46 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: EAPOL-Key timeout
Nov  1 23:57:46 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:57:47 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: EAPOL-Key timeout
Nov  1 23:57:47 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: EAPOL-Key timeout
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.1X: unauthorizing port
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.11: deauthenticated due to local deauth request
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.11: disassociated
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.11: associated
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: event 1 notification
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: start authentication
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.1X: unauthorizing port
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/4 msg of 4-Way Handshake
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: received EAPOL-Key frame (2/4 Pairwise)
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 3/4 msg of 4-Way Handshake
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: received EAPOL-Key frame (4/4 Pairwise)
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.1X: authorizing port
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: pairwise key handshake completed (WPA)
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: sending 1/2 msg of Group Key Handshake
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: received EAPOL-Key frame (2/2 Group)
Nov  1 23:57:48 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: group key handshake completed (WPA)
Nov  1 23:57:49 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.11: disassociated
Nov  1 23:57:49 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 WPA: event 2 notification
Nov  1 23:57:49 eu hostapd: ath0: STA 00:1a:73:68:8c:b4 IEEE 802.1X: unauthorizing port
Kde muze byt problem?
4.11.2009 22:27 wifi
Rozbalit Rozbalit vše Re: Nefunkcni wifi
Nenapada nekoho, co tomu muze byt? Me uz vsechny napady opustily. :-(
7.11.2009 00:14 wifi
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?
7.11.2009 12:56 frdrx | skóre: 29 | blog: frdrx
Rozbalit Rozbalit vše Re: Nefunkcni wifi
Ze zoufalosti, s wpa=1 to taky nejde?
Patička mi slouží k tomu, abych si lépe poznal svoje příspěvky.
7.11.2009 23:57 wifi
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Porad nic :-(
8.11.2009 18:25 gogol | skóre: 8
Rozbalit Rozbalit vše Re: Nefunkcni wifi 
Riesil som rovnaky problem nedavno. Problem som identifikoval pri autorizacii, nakolko mi to bez WPA chodilo.
Bohuzial zatial som to nedotiahol dokonca, takze nemozem presne povedat co je pricinou.

Zda sa ze u teba prechadza autorizacia a autentifikacia dobre.
Skonci ti to pri: Stuck beacon; resetting (beacon miss count: 11)

Strata beacon sprav moze zapricinit rozpad linky alebo ako to tak vyzera aj znovavajednavanie autorizacie.
U teba je vypadok viac ako 1 sekunda pri standardnom nastaveni beacon=100ms

event 1 notification
event 4 notification
sending 1/4 msg of 4-Way Handshake ... zasiela AP
EAPOL-Key timeout .................... neprisla odpoved od STA do urceneho casu

Z akeho dovodu neviem, napada ma malokvalitny signal, ale to by bolo treba premerat bez sifrovania najprv.
8.11.2009 20:04 wifi
Rozbalit Rozbalit vše Re: Nefunkcni wifi
napada ma malokvalitny signal, ale to by bolo treba premerat bez sifrovania najprv.
Mam tam tudle antenu. Notebook mam asi 1,5 metru od anteny.
8.11.2009 22:02 gogol | skóre: 8
Rozbalit Rozbalit vše Re: Nefunkcni wifi 
Bohuzial aj ked vieme aku mas antenu a vzdialenost, nic nam to nepovie o tom ako kvalitny ten signal je.
Obcas byvaju podobne problemy s velmi signym signalom kedy STA nedokaze ziskat adresu od AP cez DHCP, lebo signal je degradovany odrazmi od blizkych predmetov, pricom linka nespadne. Robi to podobnu vec, kedy sa opakuje ziadost o ziskanie adresy az do vyprsania casovaca.
Skus znizit vysielaci vykon na NB aj AP na minimum napr. 1mW ak sa da, a pre 1.5m nepouzivaj vykonnu antenu.

Dalej mi neni jasne z toho vypisu, ci strata beacon sprav sa tyka STA alebo AP.
Pokial by sa tykala AP, tak by bola mozna chyba v obsluhe prerusenia pri vysielani beacon sprav.
Z toho by sa dalo dedukovat, ze nejaky proces (tipujem na wpa_supplicant) ma vyssiu prioritu ako obsluha prerusenia vysielania beacon sprav.
Neviem ale presne ako Atheros karty vysielaju beacon spravy. Mozu byt generovane samotnym hardwerom karty v zavislosti od registra ktory nastavuje len dobu vysielania.
8.11.2009 23:27 wifi
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>>Obcas byvaju podobne problemy s velmi signym signalom

Signal mi to ukazuje na maximum (na notebooku). Potom jsem odpojil antenu od AP a nechal tam jenom pigtail (asi 15cm). Ted uz notebook vidi signal jenom asi napul - ale porad to dela tu samou chybu.

>>Skus znizit vysielaci vykon na NB aj AP na minimum napr. 1mW ak sa da

zitra zkusim

>>ze nejaky proces (tipujem na wpa_supplicant) ma vyssiu prioritu ako obsluha prerusenia

mam dat wpa_supplicantu nice treba 19?
8.11.2009 23:48 gogol | skóre: 8
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Sila signalu moze byt aj mala, podstatna je jeho kvalita. Mala by byt co najvyssia.

Link Quality=0/70  Signal level=-95 dBm
Link Quality by si mal mat aspon 50/70, pricom Signal Level moze byt aj -70dBm, ale ty budes mat asi tak -50 dBm.

Zapojit namiesto anteny len pigtail, je to iste ako do TV dat kus drotu a divit sa preco ten obraz je taky spatny.
V kazdom pripade antenu tam treba zapojit. Mozes ist ale dalej s NB.
9.11.2009 19:42 wifi
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Tak jsem k AP pripojil antenu a nastavil vykon na 1mW: 
root@ap:~# iwconfig ath0 txpower 1mW
root@ap:~# iwconfig
ath0      IEEE 802.11g  ESSID:"TEST"  Nickname:""
          Mode:Master  Frequency:2.442 GHz  Access Point: 06:1D:0F:B2:D3:16   
          Bit Rate=54 Mb/s   Tx-Power=off   Sensitivity=1/1  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:734D-ABD8-5D93-036D-9542-5C6C-327B-1D3F [2]   Security mode:restricted
          Power Management:off
          Link Quality=37/70  Signal level=-59 dBm  Noise level=-96 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
S notebookem jsem sel asi 3 metry (+1 zed). Nastavit vykon se mi nepodarilo (Broadcom BCM4311): 
root@notebook:~# iwconfig eth1 txpower 1mW
Error for wireless request "Set Tx Power" (8B26) :
    SET failed on device eth1 ; Operation not supported.
root@notebook:~#iwconfig
eth1      IEEE 802.11bg  ESSID:"TEST"  Nickname:""
          Mode:Managed  Frequency:2.442 GHz  Access Point: 06:1D:0F:B2:D3:16   
          Bit Rate=54 Mb/s   Tx-Power:32 dBm   
          Retry min limit:7   RTS thr:off   Fragment thr:off
          Power Managementmode:All packets received
          Link Quality=3/5  Signal level=-69 dBm  Noise level=-94 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:22  Invalid misc:0   Missed beacon:0
Porad ten samy prolem.    :'-(

10.11.2009 11:16 gogol | skóre: 8
Rozbalit Rozbalit vše Re: Nefunkcni wifi 
Uz tam nejaky signal mas. Kvalita ale neni nejak slavna.
ath0 Link Quality=37/70  Signal level=-59 dBm
eth1 Link Quality=3/5  Signal level=-69 dBm

Ohladom toho vytazenie AP v nevhodnom case mozes vyskusat:
Do wpa_supplicant dopis priority=5 asi takto:

#
# File: wpa_supplicant.conf
#
ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=root
ap_scan=1

network={
	ssid="TUX"
        priority=5
	#psk="muj_wpa_klic"
	psk=c83675195046e113bf7e3de0e6d280edbc8804a88da655992d2bb80f0f72f40b
}
7.11.2009 14:04 vojtam
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Ahoj zkoušel jsem něco to samé na D-Link kartě ale návody pro Atheros fungují asi jenom pro karty s oním čipem (třeba a je to možné že se pletu, tak mě opravte.

Vždycky když jsem to nějak zkusil napáchat na mou Wi-Fi kartou tak mi to vytuhlo (nemyslím PC ale spojení)
9.11.2009 20:07 wifi
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Odpovědět | | Sbalit | Link | Blokovat | Admin
Jeste mne napadla jedna (blba) moznost. Co spustit AP bez sifrovani a nahodit tam OpenVPN a na firewallu povolit jenom ten VPN port?

Ma stim nekdo zkusenosti? Jak moc spatne je to reseni?
10.11.2009 11:41 Sopťa
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Ahoj, včera jsem to zkoušel doma a mám otázku. Proč se tam snažíš spouštět WPA_suplicant? Ten jse určenej pro konfiguraci klienta. Síma na svejch stránkách to pužívá jenom k vygenerování toho WPA klíče.

První co bych asi zkoušel je jestli Ti ta kart chodí jako AP bez šifrování. Tuhle kartu mám doma na stole a když jsem jí zkoušel tak mi nechodila ani jako AP.

Pak bych se dal do šifrování. Ještě si nenapsal co je to za systém a co tam máš za madwifi. Tady je můj konfigurák pro kartu "Ethernet controller: Atheros Communications, Inc. AR5006X 802.11abg NIC (rev 01)" ve Voyage linux 5.2.

interface=ath0

bridge=wifi0

driver=madwifi

logger_syslog=0

logger_syslog_level=2

logger_stdout=-1

logger_stdout_level=2

debug=4

dump_file=/tmp/hostapd.dump

ctrl_interface=/var/run/hostapd

ctrl_interface_group=0

ssid=test

macaddr_acl=0

eap_server=0

eap_message=hello

eapol_key_index_workaround=0

#auth_algs=3

wpa=3

wpa_passphrase=protozebagr

wpa_key_mgmt=WPA-PSK

wpa_pairwise=TKIP CCMP

wpa_group_rekey=600

wpa_gmk_rekey=86400

wpa_strict_rekey=1

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